henning@ 9 years ago because of an issue with the /dev/hotplug device
- it does not support multiple readers opening it. Nobody ever cared
enough to fix it so it is time to sent the dead code to the Attic.
OK henning@ (feeling sad about it), mpi@ and others
by returning ENXIO instead of ENOENT, to essentially indicate hotplug
sensor that has gone away. Accessing beyond the end of the sensordev
list still returns ENOENT, so that you can see there are no further devices.
ok kettenis oga
the first query we will never do the settime because
SENSOR_QUERY_INTERVAL (30s) is greater than SETTIME_TIMEOUT (15s). so
during the settime period only, be more aggressive and use
SETTIME_TIMEOUT/3 for the query interval.
ok henning@
With this patch, we give up without bothering sysctl
kern_sensors.c::sensor_find() unless we know for sure that timedelta
sensor is present.
From: "Constantine A. Murenin" <cnst+openbsd@bugmail.mojo.ru>
symbol, follow the guidelines from K&R: only one definition of a
global symbol (and possibly more declarations). Rename some vars
here and there to avoid shadowing. ok henning@
of the last sensor update time got broken, doesn't show up with gps since
it updates often (more often than we read), but naddy ran into it with dcf.
record time of last sensor datum seperately. ok naddy balmer
time, and make ntpd use that to send the next uery to an ntp peer and the
like. this has the advantage that changes to the clock do not interfere
with the intervals. for example, when we start on machines without an
RTC and the initial settime (-s) kicks in, intervals were strange.
idea from amandal@entrisphere.com, this implementation by me
tested ckuethe, phessler, mbalmer, ok mbalmer
them only every 30 seconds. now query them every 5,and take the median
value from 7 queries as sensor value. this takes outliers out of the
equation and makes the overall result much better, especially for
sensors with heavy jitter (like nmea for now)
takes the offset it adjtime() is already correcting for into account
when taking the offset from a sensor, we need to correct it by the
offset between system time and ntpd view.
reyk